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  • Title: The purification and kinetic characterization of eel white muscle pyruvate kinase.
    Author: Roberts B, Anderson PJ.
    Journal: Comp Biochem Physiol B; 1985; 80(1):51-6. PubMed ID: 3967491.
    Abstract:
    A stable, homogeneous preparation of pyruvate kinase from white muscle of the American eel, Anguilla rostrata with a specific activity of 350 units/mg has been obtained. The enzyme has a pH optimum in the range 6.3-6.5 and requires Mg2+ and K+ for maximum activity. Eel muscle pyruvate kinase exhibits slight co-operativity in the binding of the substrate phosphoenol-pyruvate. It is activated by fructose-1,6-bisphosphate in a pH dependent manner and is inhibited by both alanine and phenylalanine. These properties are very similar to the properties of the mammalian M2 isozyme.
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